A system of geometry and trigonometry : with a treatise on surveying ... in which, also, the principles of rectangular surveying ... are fully explained: with a complete series of mathematical tables, and the necessary explanations (1830)
Flint, Abel, 1765-1825, Gillet, George, Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Hartford : Cooke & co. · leaf 53
ntained bythe two sides. To protract a field according to the preceding rules is pre-ferable to the method of doing it by parallel lines, though itmay not be so easy to the learner at first. It is difficult todraw parallel lines with perfect accuracy, and a small devia-tion from a true line may… … SURVEYING. 51 To DRAW A PLOT OF THIS FIELD, ACCORDING TO THE PRE-CEDING RULES. Having drawn the side AB, according to the directions be-fore given for laying off the first course and distance, com-pare the first and second courses together, and they will befound to be both north and both east;…
Surveying
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